powerpc: don't clobber register r31

Thanks.  Here is another one.

Andreas.

>From 03d635f98a565cd17a08ba84d9095ca1b7c00cef Mon Sep 17 00:00:00 2001
From: Andreas Schwab <schwab@linux-m68k.org>
Date: Sat, 19 Mar 2011 21:36:21 +0100
Subject: [PATCH] powerpc: fix register constraint

diff --git a/orc/orcpowerpc.c b/orc/orcpowerpc.c
index b048b85..c951da6 100644 (file)
--- a/orc/orcpowerpc.c
+++ b/orc/orcpowerpc.c
@@ -382,13 +382,13 @@ orc_powerpc_flush_cache (OrcCode *code)
 
   ptr = code->code;
   for (i=0;i<size;i+=cache_line_size) {
-    __asm__ __volatile__ ("dcbst %0,%1" :: "r" (ptr), "r" (i));
+    __asm__ __volatile__ ("dcbst %0,%1" :: "b" (ptr), "r" (i));
   }
   __asm__ __volatile ("sync");
 
   ptr = (void *)code->exec;
   for (i=0;i<size;i+=cache_line_size) {
-    __asm__ __volatile__ ("icbi %0,%1" :: "r" (ptr), "r" (i));
+    __asm__ __volatile__ ("icbi %0,%1" :: "b" (ptr), "r" (i));
   }
   __asm__ __volatile ("isync");
 #endif